For a new highway, highway change, or highway deletion, the district
sends a request and location map to Transportation Planning and
Programming Division (TPP) along with a citys and/or countys
resolutions requesting the proposed change to the highway system.
Depending on the type of highway requested by the district, the highway
funding, and the location of the highway, TPP assigns an appropriate
number to the highway, prepares the proposed minute order, and forwards
the final minute order packet to the Texas Transportation Commission (commission)
for approval at its monthly meetings. No highway is designated
without commission approval.

Memorial Highways are named through the state legislature or by local
government, who works with the appropriate district for highway
signing. TPP keeps a record of the memorial highways but does not
designate them (Transportation Code, Chapter 225). The only
designated highways with names are Old San Antonio Road (OSR) and NASA
Road 1; all other highways are designated with the highway system and a
number.

Park Roads to a state park are designated on the State Highway
System. Park Roads within a state park are maintained by TxDOT by
law and are not usually designated (Texas Administrative Code, Title 43,
Chapter 15, Subchapter F, Section 15.60).